#define _CRT_SECURE_NO_WARNINGS 1
#include"test.h"
//初始化
void SLInit(SL *ps)
{
	assert(ps);
	ps->a = (SLDataType*)malloc(sizeof(SLDataType)* INIT_CAPACITY);
	if (ps->a == NULL)
	{
		perror("malloc fail");
		return;
	}
	ps->size = 0;
	ps->capacity = INIT_CAPACITY;
}
//销毁
void SLDestory(SL* ps)
{
	assert(ps);
	free(ps->a);
	ps->a = NULL;
	ps->capacity = ps->size = 0;
}
//尾插---时间复杂度O（N）
void SLPushBack(SL* ps, SLDataType x)
{
	assert(ps);
	SLCheckCapacity(ps);
	ps->a[ps->size++] = x;
}
//打印
void SLPrint(SL* ps)
{
	assert(ps);
	for (int i = 0; i < ps->size; i++)
	{
		printf("%d ", ps->a[i]);
	}
	printf("\n");
}
//尾删除O（N）
void SLPopBack(SL* ps)
{
	assert(ps);
	//暴力检查
	assert(ps->size > 0);
	//温柔检查
	//if(ps->size==0)
	//return;
	ps->size--;
}
//头插O(N^2)
void SLPushFront(SL* ps, SLDataType x)
{
	assert(ps);
	SLCheckCapacity(ps);
	int end = ps->size - 1;
	while (end >= 0)
	{
		ps->a[end + 1] = ps->a[end];
		end--;
	}
	ps->a[0] = x;
	ps->size++;
	//SLInsert(ps, 0, x)；
} 
//头删O(N^2)
void SLPopFront(SL* ps)
{
	assert(ps);
	assert(ps->size > 0);
	int begin = 1;
	while (begin < ps->size)
	{
		ps->a[begin - 1] = ps->a[begin];
		begin++;
	}
	ps->size--;
}
//扩容
void SLCheckCapacity(SL* ps)
{
	assert(ps);
	if (ps->size == ps->capacity)
	{
		SLDataType* tmp = (SLDataType*)realloc(ps->a, sizeof(SLDataType) * ps->capacity * 2);
		if (tmp == NULL)
		{
			perror("realloc fail");
			return; 
		}
		ps->a = tmp;
		ps->capacity *= 2;
	}
}
//中间插入
void SLInsert(SL* ps, int pos, SLDataType x)
{
	assert(ps);
	assert(pos >= 0 && pos <= ps->size);
	SLCheckCapacity(ps);
	int end = ps->size - 1;
	while (end >= pos)
	{
		ps->a[end + 1] = ps->a[end];
		end--;
	}
	ps->a[pos] = x;
	ps->size++;
}
//中间删除
void SLErase(SL* ps, int pos)
{
	assert(ps);
	assert(pos >= 0 && pos < ps->size);
	int begin = pos + 1;
	while (begin < ps->size)
	{
		ps->a[begin - 1] = ps->a[begin];
		begin++;
	}
	ps->size--;
}
//查找下标
int SLFind(SL* ps, SLDataType x)
{
	assert(ps);
	for (int i = 0; i < ps->size; i++)
	{
		if (ps->a[i] == x)
			return i;
	}
	return -1;
}